Why Doesn’t Propecia Work For Some People?

Is propecia less likely to work if one is required to start it as a younger age (such a I, who is 18) as their is a higher level of testosterone present? Also when propecia proves not affective in a person why is this?

Thank you

It is not a perfect world! Some people respond to a medicine differently than others. I believe that all men with genetic balding will have some benefit of Propecia, but will the degree of benefit meet the needs of the patient? That is the question…